noun · a physically large head or a mask in the shape of an oversized head often used in folk performances

他在庙会上戴着大头娃娃面具跳舞。

noun · the thicker, wider, or larger end of an object

把棍子的大头朝下放稳。

noun · the largest portion or main part of a whole, such as an expense or a task

这笔奖金里，技术研发部门拿了大头。

noun · an old silver coin featuring the bust of Yuan Shikai on the obverse side

奶奶手里还留着几枚民国时期的大头。

noun, measure word · a person who is easily cheated or exploited, especially in financial transactions

他花了大价钱买这个假货，真是个大头。